Invaginate
v. 收进鞘中
✅ 同义词
🗣️ 情景例句
I'm planning to run for the school board.
我打算竞选联合校董会董事。
I asked him to come with me , but he wouldn't.
我请他和我一起来，但是他不肯。
Do me a favor?
帮个忙，好吗？